Presidential Candidates Speak At Iowa State Fair Soapbox [Getty Images]

Hillary Clinton, former U.S. secretary of state and 2016 Democratic presidential candidate, walks into the Agriculture Building while touring the Iowa State Fair in Des Moines, Iowa, U.S., on Saturday, Aug. 15, 2015. Clinton said today she doesn't see the continued scrutiny of her e-mail practices while heading the State Department as a liability for her campaign for the White House. Photographer: Andrew Harrer/Bloomberg via Getty Images

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